[Patch] Increase array sizes in vect-tests to enable 256-bit vectorization

[Richard Guenther]

On Fri, Dec 2, 2011 at 6:39 PM, Michael Zolotukhin
<michael.v.zolotukhin@gmail.com> wrote:
>>
>> Shouldn't we add a variant for each testcase so that we still
>> excercise both 128-bit and 256-bit vectorization paths?
>
> These tests are still good to test 128-bit vectorization, the changes
> was made just to make sure that 256-bit vectorization is possible on
> the tests.
>
> Actually, It's just first step in enabling these tests for 256 bits -
> for now many of them are failing if '-mavx' or '-mavx2' is specified
> (mostly due to different diagnostics messages produced by vectorizer),
> but with original (small) sizes of arrays we couldn't even check that.
> When they are enabled, it'll be possible to use them for testing both
> 128- and 256- bit vectorization.

I mean, that, when 256-bit vectorization is enabled we still use 128bit
vectorization if the arrays are too short for 256bit vectorization.  You'll
lose this test coverage when you change the array sizes.

Richard.

> Michael
>
>
> 2011/12/2 Richard Guenther <richard.guenther@gmail.com>:
>> 2011/12/2 Michael Zolotukhin <michael.v.zolotukhin@gmail.com>:
>>> Hi,
>>>
>>> This patch increases array sizes in tests from vect.exp suite, thus
>>> enabling 256-bit vectorization where it's available.
>>>
>>> Ok for trunk?
>>
>> Shouldn't we add a variant for each testcase so that we still
>> excercise both 128-bit and 256-bit vectorization paths?
>>
>>> Changelog:
>>> 2011-12-02  Michael Zolotukhin  <michael.v.zolotukhin@intel.com>
>>>
>>>        * gcc.dg/vect/slp-13.c: Increase array size, add initialization.
>>>        * gcc.dg/vect/slp-24.c: Ditto.
>>>        * gcc.dg/vect/slp-3.c: Likewise and fix scans.
>>>        * gcc.dg/vect/slp-34.c: Ditto.
>>>        * gcc.dg/vect/slp-4.c: Ditto.
>>>        * gcc.dg/vect/slp-cond-2.c: Ditto.
>>>        * gcc.dg/vect/slp-multitypes-11.c: Ditto.
>>>        * gcc.dg/vect/vect-1.c: Ditto.
>>>        * gcc.dg/vect/vect-10.c: Ditto.
>>>        * gcc.dg/vect/vect-105.c: Ditto.
>>>        * gcc.dg/vect/vect-112.c: Ditto.
>>>        * gcc.dg/vect/vect-15.c: Ditto.
>>>        * gcc.dg/vect/vect-2.c: Ditto.
>>>        * gcc.dg/vect/vect-31.c: Ditto.
>>>        * gcc.dg/vect/vect-32.c: Ditto.
>>>        * gcc.dg/vect/vect-33.c: Ditto.
>>>        * gcc.dg/vect/vect-34.c: Ditto.
>>>        * gcc.dg/vect/vect-35.c: Ditto.
>>>        * gcc.dg/vect/vect-36.c: Ditto.
>>>        * gcc.dg/vect/vect-6.c: Ditto.
>>>        * gcc.dg/vect/vect-73.c: Ditto.
>>>        * gcc.dg/vect/vect-74.c: Ditto.
>>>        * gcc.dg/vect/vect-75.c: Ditto.
>>>        * gcc.dg/vect/vect-76.c: Ditto.
>>>        * gcc.dg/vect/vect-80.c: Ditto.
>>>        * gcc.dg/vect/vect-85.c: Ditto.
>>>        * gcc.dg/vect/vect-89.c: Ditto.
>>>        * gcc.dg/vect/vect-97.c: Ditto.
>>>        * gcc.dg/vect/vect-98.c: Ditto.
>>>        * gcc.dg/vect/vect-all.c: Ditto.
>>>        * gcc.dg/vect/vect-double-reduc-6.c: Ditto.
>>>        * gcc.dg/vect/vect-iv-8.c: Ditto.
>>>        * gcc.dg/vect/vect-iv-8a.c: Ditto.
>>>        * gcc.dg/vect/vect-outer-1.c: Ditto.
>>>        * gcc.dg/vect/vect-outer-1a.c: Ditto.
>>>        * gcc.dg/vect/vect-outer-1b.c: Ditto.
>>>        * gcc.dg/vect/vect-outer-2.c: Ditto.
>>>        * gcc.dg/vect/vect-outer-2a.c: Ditto.
>>>        * gcc.dg/vect/vect-outer-2c.c: Ditto.
>>>        * gcc.dg/vect/vect-outer-3.c: Ditto.
>>>        * gcc.dg/vect/vect-outer-3a.c: Ditto.
>>>        * gcc.dg/vect/vect-outer-4a.c: Ditto.
>>>        * gcc.dg/vect/vect-outer-4b.c: Ditto.
>>>        * gcc.dg/vect/vect-outer-4c.c: Ditto.
>>>        * gcc.dg/vect/vect-outer-4d.c: Ditto.
>>>        * gcc.dg/vect/vect-outer-4m.c: Ditto.
>>>        * gcc.dg/vect/vect-outer-fir-lb.c: Ditto.
>>>        * gcc.dg/vect/vect-outer-fir.c: Ditto.
>>>        * gcc.dg/vect/vect-over-widen-1.c: Ditto.
>>>        * gcc.dg/vect/vect-over-widen-2.c: Ditto.
>>>        * gcc.dg/vect/vect-over-widen-3.c: Ditto.
>>>        * gcc.dg/vect/vect-over-widen-4.c: Ditto.
>>>        * gcc.dg/vect/vect-reduc-1char.c: Ditto.
>>>        * gcc.dg/vect/vect-reduc-2char.c: Ditto.
>>>        * gcc.dg/vect/vect-reduc-pattern-1b.c: Ditto.
>>>        * gcc.dg/vect/vect-reduc-pattern-1c.c: Ditto.
>>>        * gcc.dg/vect/vect-reduc-pattern-2b.c: Ditto.
>>>        * gcc.dg/vect/vect-shift-2.c: Ditto.
>>>        * gcc.dg/vect/vect-strided-a-u8-i8-gap2.c: Ditto.
>>>        * gcc.dg/vect/vect-strided-a-u8-i8-gap7.c: Ditto.
>>>        * gcc.dg/vect/vect-strided-u8-i8-gap2.c: Ditto.
>>>        * gcc.dg/vect/vect-strided-u8-i8-gap4.c: Ditto.
>>>        * gcc.dg/vect/vect-strided-u8-i8-gap7.c: Ditto.
>>>
>>> --
>>> ---
>>> Best regards,
>>> Michael V. Zolotukhin,
>>> Software Engineer
>>> Intel Corporation.